The Sony PVM-9044QM is a high resolution field monitor. It has a 9″ screen and featues YUV/RGB and composite inputs. The monitor is switchable between 4:3 and 16:9 aspect ratios. It provides for high-brightness, high-contrast viewing up to a 170-degree viewing angle, both horizontally and vertically, that minimizes color variation and ensures sharp images. 12V battery power.